Desa GWN30TA user manual

User manual for the device Desa GWN30TA

Device: Desa GWN30TA
Category: Electric Heater
Manufacturer: Desa
Size: 1.75 MB
Added : 2/3/2014
Number of pages: 28
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Abstracts of contents
Summary of the content on the page No. 1

UNVeNTed (VeNT-FRee) Bl Ue FlAMe GAs HeATeR
sAFeTY INFoRMATIoN ANd INsTAA ll TIoN MANUAl
Models
GWN20TA, GWP20TA, GWN30TA, GWP30TA, WMN20A, WMP20A
WARNING: If the information in this manual is not fol-
lowed exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
— Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do no

Summary of the content on the page No. 2

TABle oF CoNTeNTs Safety Information ...............................................  Troubleshooting ................................................. 19 Local Codes......................................................... 4 Specifications ....................................................  3 Product Identification ........................................... 4 Service Hints .....................................................  3 Unpacking...................................................

Summary of the content on the page No. 3

sAFeTY INFoRMATIoN Keep the appliance area clear Continued and free from combustible ma- Natural and Propane/LP Gas: Natural and pro- terials, gasoline and other flam- pane/LP gases are fuel gases. Fuel gases are mable vapors and liquids. odorless. An odor-making agent is added to 1. This appliance is only for use with the type fuel gases. The odor helps you detect a fuel of gas indicated on the rating plate. This gas leak. However, the odor added to fuel appliance is not convertible for

Summary of the content on the page No. 4

sAFeTY INFoRMATIoN PRodUCT Continued IdeNTIFICATIoN 12. Operating heater above elevations of Control Knob Heater 4,500 feet could cause pilot outage. Ignitor Button Cabinet 13. To prevent performance problems, do not use propane/LP fuel tank of less than 100 lbs. capacity. 14. Provide adequate clearances around air openings. l oCAl Codes Install and use heater with care. Follow all lo- cal codes. In the absence of local codes, use the latest edition of National Fuel Gas Code, ANSI Z223.1/

Summary of the content on the page No. 5

Unusually Tight Construction AIR FoR CoMBUsTIoN The air that leaks around doors and windows ANd VeNTIA l TIoN may provide enough fresh air for combustion and ventilation. However, in buildings of un- WARNING: This heater shall usually tight construction, you must provide not be installed in a confined additional fresh air. space or unusually tight con- Unusually tight construction is defined as struction unless provisions are construction where: a. walls and ceilings exposed to the outsi

Summary of the content on the page No. 6

4. Compare the maximum Btu/Hr the space AIR FoR CoMBUsTIoN can support with the actual amount of Btu/Hr ANd VeNTIA l TIoN used. Continued _______ Btu/Hr (maximum can support) _______ Btu/Hr (actual amount used) DETERMINING FRESH-AIR FLOW Example: FOR HEATER LOCATION 51,200 Btu/Hr (maximum the space can Determining if You Have a Confined or support) Unconfined Space 60,000 Btu/Hr (actual amount of Btu/Hr Use this work sheet to determine if you have a used) confined or unconfined

Summary of the content on the page No. 7

AIR FoR CoMBUsTIoN Ventilated Outlet Attic ANd VeNTIlATIoN Air Continued Outlet Air To Attic vENTILATION AIR Ventilation Air From Inside Building To This fresh air would come from an adjoining Crawl Space unconfined space. When ventilating to an Inlet Air adjoining unconfined space, you must provide Ventilated Inlet Air two permanent openings: one within 12" of the Crawl Space ceiling and one within 12" of the floor on the wall connecting the two spaces (see options Figure 3 - Ventilati

Summary of the content on the page No. 8

INsTAllATIoN CAUTION: This heater cre- Continued ates warm air currents. These INSTALLATION ITEMS currents move heat to wall sur- Before installing heater, make sure you have faces next to heater. Installing the items listed below. heater next to vinyl or cloth wall • for propane/LP gas, external regulator coverings or operating heater (supplied by installer) where impurities (such as, but • piping (check local codes) not limited to, tobacco smoke, • sealant (resistant to propane/LP gas

Summary of the content on the page No. 9

Front Panel INsTAllATIoN Screw Continued THERMOSTAT SENSING BULB (Thermostat Models Only) The thermostat sensing bulb has been placed below the heater. 1. Place clamp on thermostat sensing bulb as shown in Figure 5. Clamp is provided in hardware package. 2. Snap clamp into upper mounting hole as shown in Figure 5. Mounting hole is located on lower left edge on back of heater. Make sure the thermostat sensing bulb is point- ing up. Figure 7 - Removing Front Panel Of Heater Methods For Att

Summary of the content on the page No. 10

Attaching To Wall Anchor Method INsTAllATIoN For attaching mounting bracket to hollow Continued walls (wall areas between studs) or solid walls 2. Mark screw locations on wall (see Figure 8). (concrete or masonry) Note: Only mark last hole on each end of 1. Drill holes at marked locations using mounting bracket. Insert mounting screws 5/16" drill bit. For solid walls (concrete or through these holes only. masonry), drill at least 1" deep. 3. Remove tape and mounting bracket from 2. Fold

Summary of the content on the page No. 11

MOUNTING HEATER TO FLOOR INsTAA ll TIoN WITH OPTIONAL FLOOR KIT Continued Mounting Base Feet to Heater Installing Bottom Mounting Screws 1. Lay heater cabinet on its back on a table 1. Locate two bottom mounting holes. These with the heater bottom overhanging the holes are near bottom on back panel of table edge. heater (see Figure 12). 2. Align holes in base foot with mounting holes 2. Mark screw locations on wall. on bottom of cabinet (see Figure 13). 3. Remove heater from mounting brack

Summary of the content on the page No. 12

INsTAA ll TIoN CAUTION: Use only new, Continued black iron or steel pipe. Inter- CONNECTING TO GAS SUPPLY nally-tinned copper tubing may be used in certain areas. Check WARNING: This appliance your local codes. Use pipe of requires a 3/8" NPT (National large enough diameter to allow Pipe Thread) inlet connection to proper gas volume to heater. If the pressure regulator. pipe is too small, undue loss of volume will occur. WARNING: A qualified ser- Typical Inlet Pipe Diameters vice pe

Summary of the content on the page No. 13

INsTAllATIoN CAUTION: For propane/LP Continued gas, make sure external regula- IMPORTANT: Hold the pressure regulator tor has been installed between with wrench when connecting it to gas pip- propane/LP supply and heater. ing and/or fittings. Do not over tighten pipe See guidelines under Connect- connection to regulator. The regulator body ing to Gas Supply, page 12. could be damaged. Pressure PRESSURE TESTING GAS SUPPLY Heater Regulator PIPING SYSTEM Cabinet Test Pressures In Excess Of

Summary of the content on the page No. 14

Thermostat Gas Valve INsTAA ll TIoN Continued 3. Check all joints from gas meter for natural gas (see Figure 17) or propane/LP supply Gas tank for propane/LP gas, to equipment Meter shutoff valve (see Figure 18). Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak. 4. Correct all leaks at once. PRESSURE TESTING HEATER GAS CONNECTIONS 1. Open equipment shutoff valve (see Figure 16, page 13). Equipment Shutoff Valve 2. For natural gas open main gas valve F

Summary of the content on the page No. 15

6. Thermostat Models: Turn control knob oPeRATING HeATeR counterclockwise to the PILOT FOR YOUR SAFETY READ position. Press in control knob for five (5) BEFORE LIGHTING seconds. Manual Models: Press in and turn control knob counterclockwise to the PI- WARNING: If you do not fol- LOT position. Keep control knob pressed low these instructions exactly, in for five (5) seconds. a fire or explosion may result 7. With control knob pressed in, push down causing property damage, per- and re

Summary of the content on the page No. 16

THERMOSTAT CONTROL oPeRATING HeATeR OPERATION Continued The thermostatic control used on these models differs from standard thermostats. WARNING: Always operate Standard thermostats simply turn on and off manual control heaters at the the burner. The thermostat used on this heater locked positions. Operation senses the room temperature. The thermostat between these positions may adjusts the amount of gas flow to the burner. This increases or decreases the burner flame create a possib

Summary of the content on the page No. 17

BURNER FLAME PATTERN INsPeCTING HeATeR Check pilot flame pattern and burner flame WARNING: If yellow tipping pattern often. occurs, your heater could pro- PILOT FLAME PATTERN duce increased levels of carbon Figure 22 shows a correct pilot flame pattern. monoxide. Figure 23 shows an incorrect pilot flame pat- tern. The incorrect pilot flame is not touching NOTICE: Do not mistake orange the thermocouple. This will cause the thermo- couple to cool. When the thermocouple cools, flames with ye

Summary of the content on the page No. 18

1. Shut off the unit, including the pilot. Allow CleANING ANd the unit to cool for at least thirty min- MAINTeNANCe utes. 2. Inspect burner, pilot for dust and dirt. WARNING: Turn off heater 3. Blow air through the ports/slots and holes and let cool before cleaning. in the burner. 4. Never insert objects into the pilot tube. CAUTION: You must keep Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in the control areas, burner and circu- pilot assembly.

Summary of the content on the page No. 19

TRoUBlesHoo TING WARNING: Turn off and unplug heater and let cool before servicing. Only a qualified service person should service and repair heater. CAUTION: Never use a wire, needle or similar object to clean ODS/pilot. This can damage ODS/pilot unit. Note: All troubleshooting items are listed in order of operation. OBSERvED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is pressed, 1. Ignitor electrode positioned 1. Replace pilot assembly there is no spark at ODS/ wrong pilot 2. Ignito

Summary of the content on the page No. 20

TRoUBlesHoo TING Continued OBSERvED PROBLEM POSSIBLE CAUSE REMEDY ODS/pilot lights but flame 1. Control knob not fully 1. Press in control knob fully goes out when control knob pressed in is released 2. Control knob not pressed in 2. After ODS/pilot lights, keep long enough control knob pressed in 30 seconds 3. Safety interlock system has 3. Wait one minute for safety been triggered interlock system to reset. Repeat ignition operation 4. Equipment shutoff valve not 4. Fully open equipment sh


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